【摘要】 中国南方经历了多期构造运动的强烈改造,中、古生界油气系统成因及演化复杂,按照"动态演化"综合分析思路将其分成原生、再生烃(二次生烃)及复合油气系统三大类。加里东期、海西期及印支期是原生油气系统的主要形成期,燕山期是除四川盆地外的广大南方地区原生油气系统的主要破坏与改造期;喜马拉雅期是再生烃油气系统及复合油气系统的主要形成期,也是四川盆地原生油气系统的主要改造期。指出川东北大巴山前缘及石柱复向斜西侧高陡背斜带、川西北上三叠统一下侏罗统煤成气藏、苏北盆地阜宁-盐城-海安-兴化-宝应地区、江汉盆地沉湖地区、江西鄱阳盆地南部凹陷、川中乐山-龙女寺隆起下古生界及楚雄盆地北部凹陷为南方中、古生界油气勘探有利区。更多还原

【Abstract】 For the several stages of intensive modification by tectonic movements suffered in South China, the genesis and evolution of Mesozoic & Paleozoic petroleum systems is very complicated. Synthetical analysis of dynamic evolution shows it can be classified into 3 types as primary, hydrocarbon-regeneration (secondary hydrocarbon generation) and complex petroleum system. Caledonian, Hercynian and Indosinian are the chief formation stages of primary petroleum systems. Yanshanian is the chief destruction and modification stage of primary petroleum systems distributed out of Sichuan basin. Himalayan is the main formation stage of hydrocarbon-regeneration petroleum systems and complex petroleum systems, also the chief modification stage of primary petroleum systems in Sichuan basin. The authors predict that the favorable Mesozoic & Paleozoic exploration areas in South China are: foreland of Daba mountain and steep anticline belt of western Shizhu synclinorium in northeastern Sichuan, coal genetic gas reservoirs of Upper Triassic-Lower Jurassic in northwestern Sichuan, Funin-Yancheng-Hai’an-Xinhua-Baoyin area in northern Jiangsu basin, Chenghu area in Janghan basin, south sag of Poyang basin in Jiangxi, Lower Paleozoic of Leshan-Longlvshi uplift in central Sichuan basin and north sag of Cuxiong basin. This is verified by discovery of Zhaigouwan gas field in Fangdoushan anticline belt of western Shizhu synclinorium, Zhujiadun gas field in Yancheng sag of northern Jiangsu basin and Kaixiangtaixi oil reservoir in Chenghu area of Jianghan basin.更多还原